Thinsulate

3M™ Thinsulate™ Insulation is powerful and lightweight, holding body heat and allowing mositure to evaporate. Due to its very fine microfibers, Thinsulate provides increased retention of body heat, which means less bulk and increased freedom of movement. This insulation is highly customizable, with properties ranging from flame-resistance to water-resistance, increased stretching capacity and odor resistance. The Water-resistant footwear insulation keeps your feet dry, warm and comfortable, without unnecessary bulk and weight